Jim,
I may catch flak for saying this but I do believe the LZ for a blind shot should be reasonably flat. There is a course near where I live, The Lake Joseph Club, that has a blind/uphill second shot on a par 5 to a wildly undulating fairway. Too often shots are hit in the general direction of the fairway, take a funny bounce (I presume) and are lost.
Call that what you want. Some would say unfair. Maybe others idiotic. I say that's not fun.